Óscar Trigo Diez (born September 25, 1972, in Gràcia, Barcelona) is a wheelchair basketball coach.

As part of the coaching staff of the under-22 team, they achieved a gold medal in the Under-23 European Championship held in Turkey in 2008 and a second-place finish in the under-22 European Championship held in Paris in 2009..[1] As head coach of the national team, he contributed to raising the standards of player preparation, being the first coach to invest in a multidisciplinary team of professionals in different performance areas (psychology, medicine, biomechanics, nutrition).

With this team, he competed in the C-level European Championship, guiding them to a 2nd place in the championship and achieving promotion to a higher category..[3] The first club side Trigo coached was FCBarcelona-Guttmann in the top level of Spanish club wheelchair basketball.

From September 2012 to July 2015, he coached the CE San Nicolau team in Sabadell, in the Spanish Basketball League.

After the Tokyo Olympics, Trigo returned to coach the FC Barcelona-Unessantfeliu wheelchair basketball team.